Blog
Practical guides behind the tools — how the math and formats actually work.
January 25, 2026
SIP vs. lumpsum: what the math actually says
Systematic investing and lump-sum investing solve different problems. Here's how to reason about which one fits your situation.
January 20, 2026
How to compress a PDF without wrecking it
What actually makes PDFs large, why some compressors do more damage than others, and how to pick the right approach for your file.
January 15, 2026
How to calculate EMI (and why the formula looks so intimidating)
A plain-English walkthrough of the EMI formula, what each variable means, and a worked example you can check by hand.
January 10, 2026
How to format JSON (and actually understand the errors)
JSON looks like a JavaScript object but follows stricter rules. Here's what those rules are and how to read the errors when they're broken.